Resilient tire.



C. F. STROHM. RESILIENT TIRE.

APPLICATION FILED OCT. 21, 1911.

Patented Dec. 23, 1913.

2 SHEETSSHEET 1.

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0. F. STROHNL RESILIENT TIRE.

APPLICATION FILED 001221, 1911.

Patented Dec. 23, 1913.

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PATENT OFFICE.

CHARLES F. STRbHM, OF CARTHAGE, MISSOURI.

RESILIEN'I TIRE.

aosaass.

Specification of Letters Patent.

Application fiied October 21, 1911. Serial n). 655,966.'

To all whom it may concern Be it known that I, CHARLEs F. 'Srnomr,

a citizen of the United States, residing in the city of Carthage, countyof Iasper, and

State of Missouri, have invented certain new and useful Improvements inResilientTires,

of which the following is a specification.

My invention relates to resllient tlresfor automobiles and othervehicles, and more or resilient tire is supported by or upon a pneumaticcushion concentric therewith, these being supported upon the rim of theWheel.

The invention has for its object to im prove a tire of this type inrespects and mannor to be pointed out.

In the accompanying drawings, Figure 1 is a cross sectional view of atire embody-- ing my improvements, the inner tube or pneumatic cushionbeing inflated. Fig. 2 is a similar view showing the inner tube partlyIn the drawings, 12 designates the felly of a wheel which may be of anyusual or approved construction. Upon this is supported a rim 9preferably of metal and secured to the felly by bolts 13 and nuts 1st.

The tire is held in place by a pair of suppreferably consists of atreadof rubber or. rubber composition, 3, and a backing of rubf her andfabric, 2, which is of considerable diametric thickness. The cushiontire is" provided along each edge and intermediate bet-ween its outer,tread surface and its 111- ner surface with strips, 4, 4, theypreferably being of the same composition as the reinforced orstrengthened part 2 of the tire. The inner face of the cushion portionof the tire rests'upon the inner tube or pneumatic cushion 8 which isseated in an annular jehamben'formed to receive it by the shape of theretaining flanges,,1, 1, when secured in placeupon the wheel. The outerportions of the fiangesl are spaced apart a distance to accommodatebetween them the inner pbrtionI-"Q ofthe cushion tire. 4, 1,' .,of thetire are carried outward and lie in 'seats18 provided therefor in theouter edges-of the flanges, where they are confined I .by the clamprings 5 and retaining screws 6.- particularly to tlres 1n WhlCl'l anouter elastlc When a tire such as described is secured in place upon thewheel flange with the inner tube inflated, the parts occupy theposition' shown in Fig. 1, the cushion portion of the tire being forcedoutward by the inner tube, the strips 4 being thus put under sometension. -Under these conditions, there are annular spaces, designated15, between the reinforced body 2 of the cushion tire,-the

strips-4: thereof, and the outer ends or edges of the retaining flanges,which latter are Tatenteil Dec. 23,1913.

so The strips,

formed into seats 19. Should the inner tube become compressed, as whenthe wheel' passesover some obstruction, or partly deflated, theparts ofthe tire. assume the positions indicated in Fig. 2, when, asmay be seen,the cushion tire is forced inward ,between the flanges 1, 1, untilit'rests upon the seats 19, the strips 4 meanwhile flexing to permitthis change in thep'osition 10f the.

cushion tire. 'It will thusfbe'seen that when the cushion tire 1S forcedinward to the eX sure and curved soas'to be approximately concentricwlth the inner tube When fully unflated, and having their ends extendingoutward beyond the body of the cushion.

tire. The end portions of'the arched spring bars 7 extend through slots16 formed in those parts of the flange lbetw'een which is situated thebody 2 of the cushion tire.'

These bars by their engagement with the retaining flanges serve, asstated, to prevent creeping of the tire. They also operate to preventthe cushion tire being forced outward to an undesirable degree by theinflation of the inner tube, and thus relieve the satisfactory manner,being supported by the retaining flanges and bars 7 entirelyacross thetire, that is, from edge to edge, while it is also supported at itsedges and but relatively a short distance from the tread by resting uponthe seats 19 formed in the outer edges of the flange.

The strips 4 are flexible so to permit free movements of the cushiontire; and they serve under all= circumstances. to securely close theouter openings into the space between the re'tai-ningflanges; so thatthe body portion 2 of the cushion tire, and the inner tube or pneumaticcushion are" protected from dirt and water and the deterioration that isincident to the presence'o-f these.

It'will thus beseenthat the tire which .I' have described andillustrated possesses practically all the advantages, incident:severa-11y to a pneumatic tire and falso-"to-a cushion tire without thedefects which are incident to either of these forms of'tires. When theinner tube is inflated the cush- 1on" tire acts as an armor therefor andeffectually prevents puncture thereof. When the .inner tube is deflatedor f0r other reasons the cushiontire is caused to occupy the-positionindicated in Fig. 2, it is supported, as will be seen, directly back ofthe tread by the, bars 7, as well as along its edges, b'y

- the engagement of the tire with the seats 19 upon the flanges. ,Suchsupporting of the hlel outer or cushion tire is entirely independent ofthe pneumatic or inner tube.

The body portion 2 of the cushion tire has parallel sides which engagewith the paralfaces 20 of the retaining flanges. This arrangementpermits free radial movements of the cushion tire while atfthe same timeaffording good lateral support thereto un der all conditions of use.

What I claimis:

' 1. The combination with a wheel rim, of

a cushion. tire'therefor, an inflatable pneu-.

matic tube interposed between the tire and the rim, upon which theformer rests, retaining flanges for holding in place the pneumatic tubeand the cushion tire, and yielding, resilient bars embedded in the bodyof the cushion tire and extending beyond the edges thereof and arrangedto engage with the retaining flanges when the pneumatic tube is underunusual compression and support it independently of the pneumatic tube.y

2.v The combination with a wheel'rim, of

a cushion tire-therefor, having a tread and a body back of the tread, aresilient support for the tire interposed between it and the wheel rim,retaining flanges for holding in place upon the wheel the said tire andresilient support, the flanges being formed with faces between. whichthe body of the tire is supported and free to move radially, there beingformed slots in the said faces of the flanges and arched spring barsseated in the bodyof the tire and having their ends lying in the saidslots formed in the retaining flanges, substantially as and for thepurposes set forth.

- CHARLES FQSTROHM.

Witnesses:

F. L. HULL,

G. B. STIcKnEY.

Copies of this patent may be obtained for live cents each, by addressingthe Commissioner of Patents Washington, D. C.

